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41-101.3A
INSTANTANEOUS OVERCURRENT UNIT OPERATING CURRENT CIRCUIT- 60 HERTZ
AMPERE RANGE
.5-2
1-4
2-8
4-16
10-40
20-80
RANGE
0.5 - 2
1 - 4
2 - 8
4 - 16
10 - 40
20 - 80
†
Thermal capacities for short times other than one second may be calculated on
the basis of time being inversely proportional to the square of the current.
ø
Degrees current lags voltage.
††
Voltages taken with Rectox type voltmeter.
4
ENERGY REQUIREMENTS
††
TAP
VA AT TAP VALUE
.5
.37
.75
.38
1
.39
1.25
.41
1.5
.43
2
.45
1
.41
1.5
.44
2
.47
2.5
.50
3
.53
4
.59
2
1.1
3
1.2
4
1.3
5
1.4
6
1.5
8
1.8
4
1.5
6
1.7
8
1.8
9
1.9
1 2
2.2
1 6
2.5
1 0
1.7
1 5
2.4
2 0
3.1
2 4
3.6
3 0
4.2
4 0
4.9
2 0
6.6
3 0
9.3
4 0
12.0
4 8
13.5
6 0
15.9
8 0
19.2
CONTINUOUS RATING
(AMPERES)
5
8
8
10
10
10
Type CKO Overcurrent Relay
ø
††
P.F. ANGLE
VA AT 4 AMPS
39
2 4
36
1 3
35
8.5
34
6 . 0
32
4.6
30
2.9
36
9.0
32
5.0
30
3.0
28
2.1
26
1.5
24
0.93
49
6.5
43
3.3
38
2.1
35
1.4
33
1.1
29
0.7
51
2.4
45
1.2
40
0.7
38
0.6
34
0.37
30
0.24
28
0.43
21
0.27
16
0.20
15
0.15
12
0.11
11
0.08
31
0.40
24
0.25
20
0.18
18
0.14
16
0.10
15
0.07
ONE SECOND RATING
ø
P.F. ANGLE
46
37
34
32
31
28
36
32
29
27
26
24
48
42
37
35
33
29
51
45
40
38
34
31
28
21
17
15
13
12
31
24
20
18
16
15
†
(AMPERES)
100
140
140
200
200
200
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